MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd1757d02e0105ab6ab8876f32671af2911d34f84fd437a68a3c5c6639e11725. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cd1757d02e0105ab6ab8876f32671af2911d34f84fd437a68a3c5c6639e11725
SHA3-384 hash: b806c86915fc125048736a05439b462f84d13c16df80bdba9a33a56ee44ac046e52122ddf393203181a76b8aef085bb0
SHA1 hash: 7929b8ef5d718fab83733fe3fe2f77d8027f79e8
MD5 hash: d793c9362f14455064a1a874e9521351
humanhash: tennis-may-florida-iowa
File name:DHL-CI- Shipping Document -DOCX.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:745'472 bytes
First seen:2024-01-29 14:05:02 UTC
Last seen:2024-01-29 15:25:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:va1zIoIFFHgeg/clNPnEr8jmaMIIvUvjKhXXkVOiVVRhziyfAaegtgNO9dMQ:aIXFxLvEAdM9vLun7zhAae6SRQ
TLSH T11FF4221733A89723E8BA8BFC116462904BF8753676D2E38D4FD070D92D617E08B197A7
TrID 49.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
20.9% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.7% (.SCR) Windows screen saver (13097/50/3)
7.0% (.EXE) Win64 Executable (generic) (10523/12/4)
4.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 1e1a594c6c52124e (17 x AgentTesla, 5 x Formbook, 3 x SnakeKeylogger)
Reporter abuse_ch
Tags:DHL exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
292
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/473454/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2655.19277.2313.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/65b7b0a3bc91f83c8070139c/reports/c2f93293-37e9-43be-abfc-55e6cbd59204/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/cd1757d02e0105ab6ab8876f32671af2911d34f84fd437a68a3c5c6639e11725
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
MSIL Injector
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7e84993d-e990-47ba-9806-1fbb542da5e8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1382747
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/cd1757d02e0105ab6ab8876f32671af2911d34f84fd437a68a3c5c6639e11725
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cd1757d02e0105ab6ab8876f32671af2911d34f84fd437a68a3c5c6639e11725/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2024-01-29 02:19:45 UTC
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zulvpuboaec2w2vyq5xtezy26kir2nhyj7kdpjukhrogmopbc4sq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240129-rdvttsbdg5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
77991ac16397d3b18bbcf028677ca9313644a31e1892133af11071a580045d27
MD5 hash:
d1b4bb59fba006d9a48de990eb02c52c
SHA1 hash:
35dcd0d50dbd4618397cf23bddf0190055bd20ab
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/dd935fce-d8d1-439e-a3b4-652e6554e480/
Parent samples :
cd1757d02e0105ab6ab8876f32671af2911d34f84fd437a68a3c5c6639e11725
43ac733f64df5f18a72d1f36a3c5ae365f5cd791d855d72a9f887015bb71adb7
SH256 hash:
1c1a210be7948e6db0d695e2fa91c96f0fe652cd20a0e72dcf872305c73bcfce
MD5 hash:
46ba5609ed416e8c1c0f714c003fe23f
SHA1 hash:
7abd1c8e8f66494e1fd2ec7c7b15c677fa0dda3a
Link:
https://www.unpac.me/results/dd935fce-d8d1-439e-a3b4-652e6554e480/
SH256 hash:
3014b859be7cafca84f61ab3398e0832d80175d76dc6ff4a45df7b2fef39dcaf
MD5 hash:
17cbde8bc5d57e164c1daa95d1b37d0b
SHA1 hash:
4856da540fd30d018fa511c9ce705871e1e2affa
Link:
https://www.unpac.me/results/dd935fce-d8d1-439e-a3b4-652e6554e480/
SH256 hash:
3512e50a7509ca8b120d7835c69302e5d739fa3651dd65485e5739a1cc991ede
MD5 hash:
8bc76b6253fe4689a874767bdefec712
SHA1 hash:
4642b756487c2e1878e7e03e32e77b51df0b3b3e
Link:
https://www.unpac.me/results/dd935fce-d8d1-439e-a3b4-652e6554e480/
SH256 hash:
6785bfee024569844db3e610b0c688a5435bd118c74dfb118fbffbf3d6df4cc0
MD5 hash:
3eff698ff9e92b0b69f80cdc9b6c9120
SHA1 hash:
1712e555662b7da0889197ab684d883254d72622
Link:
https://www.unpac.me/results/dd935fce-d8d1-439e-a3b4-652e6554e480/
SH256 hash:
cd1757d02e0105ab6ab8876f32671af2911d34f84fd437a68a3c5c6639e11725
MD5 hash:
d793c9362f14455064a1a874e9521351
SHA1 hash:
7929b8ef5d718fab83733fe3fe2f77d8027f79e8
Link:
https://www.unpac.me/results/dd935fce-d8d1-439e-a3b4-652e6554e480/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cd1757d02e01/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/cd1757d02e0105ab6ab8876f32671af2911d34f84fd437a68a3c5c6639e11725

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe cd1757d02e0105ab6ab8876f32671af2911d34f84fd437a68a3c5c6639e11725

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/473454/

Comments